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update readme

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ekibun
2021-01-02 11:28:58 +08:00
parent 045277dbe3
commit d7224dd840
6 changed files with 82 additions and 54 deletions
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15
lib/flutter_qjs.dart
View File

@@ -13,23 +13,28 @@ import 'package:ffi/ffi.dart';
import 'package:flutter_qjs/ffi.dart';
import 'package:flutter_qjs/wrapper.dart';
/// Handle function to manage js call with `dart(method, ...args)` function.
/// Handler function to manage js call.
typedef JsMethodHandler = dynamic Function(String method, List args);
/// Handle function to manage js module.
/// Handler function to manage js module.
typedef JsModuleHandler = String Function(String name);
class FlutterQjs {
Pointer _rt;
Pointer _ctx;
/// Message Port for event loop. Close it to stop dispatching event loop.
ReceivePort port = ReceivePort();
/// Set a handler to manage js call with `channel(method, args)` function.
/// Handler function to manage js call with `channel(method, [...args])` function.
JsMethodHandler methodHandler;
/// Set a handler to manage js module.
/// Handler function to manage js module.
JsModuleHandler moduleHandler;
/// Quickjs engine for flutter.
///
/// Pass handlers to implement js-dart interaction and resolving modules.
FlutterQjs({this.methodHandler, this.moduleHandler});
_ensureEngine() {
@@ -77,7 +82,7 @@ class FlutterQjs {
_ctx = null;
}
/// DispatchMessage
/// Dispatch JavaScript Event loop.
Future<void> dispatch() async {
await for (var _ in port) {
if (_rt == null) continue;

17
lib/isolate.dart
View File

@@ -211,13 +211,17 @@ typedef JsIsolateSpawn = void Function(SendPort sendPort);
class IsolateQjs {
Future<SendPort> _sendPort;
/// Set a handler to manage js call with `channel(method, args)` function.
/// The function must be a top-level function or a static method
/// Handler to manage js call with `channel(method, [...args])` function.
/// The function must be a top-level function or a static method.
JsMethodHandler methodHandler;
/// Set a handler to manage js module.
/// Asynchronously handler to manage js module.
JsAsyncModuleHandler moduleHandler;
/// Quickjs engine runing on isolate thread.
///
/// Pass handlers to implement js-dart interaction and resolving modules. The `methodHandler` is
/// used in isolate, so **the handler function must be a top-level function or a static method**.
IsolateQjs({this.methodHandler, this.moduleHandler});
_ensureEngine() {
@@ -257,6 +261,7 @@ class IsolateQjs {
_sendPort = completer.future;
}
/// Free Runtime and close isolate thread that can be recreate when evaluate again.
close() {
if (_sendPort == null) return;
_sendPort.then((sendPort) {
@@ -267,6 +272,7 @@ class IsolateQjs {
_sendPort = null;
}
/// Evaluate js script.
Future<dynamic> evaluate(String command, {String name, int evalFlags}) async {
_ensureEngine();
var evaluatePort = ReceivePort();
@@ -279,10 +285,9 @@ class IsolateQjs {
'port': evaluatePort.sendPort,
});
var result = await evaluatePort.first;
if (result['error'] == null){
if (result['error'] == null) {
return _decodeData(result['data'], sendPort);
}
else
} else
throw result['error'];
}
}